Wasn't there an episode of Time Team where they were investigating a BA or IA site which turned out to be fake. I thinkthe give away was that some of the standing stones could rocked back and forth and the a BA sword was found in a river...laying on top of some barbed wire!
I always facied putting some large standing stones in my garden. Perhaps I can have it so the sun rises over one on my birthday or something.
:o)